conversation, then the white house has their readout which is a short statement, a few lines, explaining what the leaders talked about. sometimes we don't even find out about these phone conversations. in fact, jay carney, the white house spokesman, likes to say that not every phone conversation that the president has with world leaders is read out. >> david, do you think, i mean, that the daylight between these two leaders, it's going to become more stark as the threat becomes closer. >> absolutely. bob gates, our outgoing defense secretary, has been in government over 30 years, told me before he left this iranian problem is the most difficult problem he had seen in government in over 30 years. the hardest problem to solve. there are no good solutions. >> no good solutions because the difficulty militarily of actually -- >> if you go in militarily, if you strike with the air force, a, you only set them back two or three years but secondly, there may be so much mischief that they could do that you then feel under a lot of pressure to go in and decapitate the regime. that means you have to put boots in the ground.